Grades 3–5
Brain Teaser Riddles
Ten classic brain teasers like “What gets wetter the more it dries?” Great for morning meeting.
Classroom activity · Logic puzzles and brain teasers
Mini Sudoku Puzzles
Four 4 by 4 sudoku puzzles with the numbers 1 to 4. Each one has exactly one answer.
- Grade level
- Grades 2–3
- Time
- About 20 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Logical reasoning, Problem solving, Persistence, Explaining thinking
What kids do
“Write 1, 2, 3 or 4 in each empty square. Each row, each column and each thick box has each number once.”
Teacher tip
Remind kids that each row, column and box has 1, 2, 3 and 4 just once.
How to use it
- Model the first puzzle out loud, thinking through each clue.
- Give pencils with erasers. Logic puzzles need lots of fixing.
- Keep a few copies in an early finisher bin so they are always ready.
Watch for
Kids who guess instead of reasoning. Ask them to explain each answer.
Talk about it
- How did you know you were right?
- What would you change to make it harder?
Take it further
Have kids write their own puzzle for a classmate.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More logic puzzles and brain teasers
Grades 3–5
Mystery Number Riddles
Eight “Who am I?” number riddles about digits, odd and even, multiples and square numbers.
Grades 4–5
Logic Grid: After-School Clubs
Two 4 by 4 logic grids with five clues and three clues. Kids cross out, then reason out the rest.
Grades 2–3
Shape Sudoku Puzzles
Sudoku with shapes instead of numbers: four 4 by 4 puzzles that each have exactly one answer.
Free for teachers
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